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GB882940A - Thermostatic electric switch - Google Patents

Thermostatic electric switch

Info

Publication number
GB882940A
GB882940A GB13275/60A GB1327560A GB882940A GB 882940 A GB882940 A GB 882940A GB 13275/60 A GB13275/60 A GB 13275/60A GB 1327560 A GB1327560 A GB 1327560A GB 882940 A GB882940 A GB 882940A
Authority
GB
United Kingdom
Prior art keywords
heater
terminal
casing
windings
switch
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB13275/60A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Texas Instruments Inc
Original Assignee
Texas Instruments Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Texas Instruments Inc filed Critical Texas Instruments Inc
Priority to FR859124A priority Critical patent/FR1080M/en
Publication of GB882940A publication Critical patent/GB882940A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/002—Structural combination of a time delay electrothermal relay with an electrothermal protective relay, e.g. a start relay
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/02—Electrothermal relays wherein the thermally-sensitive member is heated indirectly, e.g. resistively, inductively

Landscapes

  • Thermally Actuated Switches (AREA)
  • Protection Of Generators And Motors (AREA)

Abstract

882,940. Thermal switches. TEXAS INSTRUMENTS Inc. April 13, 1960 [April 15, 1959], No. 13275/60. Class 38 (5). A thermal switch comprises an insulating cup-shaped casing 1 carrying fixed contacts 3, 5 co-operable with movable contacts 21, 23 mounted on a bimetal plate 15 loosely carried by an adjustable post 11 and having ears 16 co-operable with projections 27 to prevent plate rotation. A heater 35 comprises a loop 47 engaging an insulating cover 29, and legs 39 having lugs 41 sprung into grooves 45 in the casing 1, one heater terminal 43 being connected to contact terminal 7 which, with its fellow terminal 9 and heater terminal 44 is sealed to the casing 1 by a potting compound 57. The loop 47 of the heater may be replaced by a straight ribbon-like portion, by a rectangular portion having an aperture adjacent the post 11 or by a multi-looped wire, with wire legs and terminals, fitted in a groove in the cover 29, Figs. 6, 7, 8 and 9 (not shown), all the heaters operating at a non-incandescent temperature. The switch may be used to protect the windings of a split-phase electric motor against overload and stalled-rotor conditions, Figs. 10 and 11 (not shown), the switch and heater design being such that the plate 15 and the motor windings heat and cool at approximately the same rate to prevent the windings exceeding a critical temperature during the initial period of the overload, Fig. 13 (not shown).
GB13275/60A 1959-04-15 1960-04-13 Thermostatic electric switch Expired GB882940A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR859124A FR1080M (en) 1960-04-13 1961-04-18 Medicinal product based on griseofulvin.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80668659A 1959-04-15 1959-04-15

Publications (1)

Publication Number Publication Date
GB882940A true GB882940A (en) 1961-11-22

Family

ID=22210530

Family Applications (1)

Application Number Title Priority Date Filing Date
GB13275/60A Expired GB882940A (en) 1959-04-15 1960-04-13 Thermostatic electric switch

Country Status (3)

Country Link
US (1) US3103566A (en)
DE (1) DE1197955B (en)
GB (1) GB882940A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202169A (en) * 1986-12-18 1988-09-21 Electrovac Method for joining conductor parts of an electric switch component
JP2014059968A (en) * 2012-09-14 2014-04-03 Ubukata Industries Co Ltd Thermally-actuated switch for sealed motor compressor

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3283097A (en) * 1962-06-06 1966-11-01 White Sales Corp Graham Thermo-electric timer
US3538379A (en) * 1968-05-06 1970-11-03 Irving Berlin Photo-electric light-activated switch apparatus
US4047141A (en) * 1976-01-29 1977-09-06 Therm-O-Disc, Inc. Calibration and mounting structure for motor controllers or the like
DE102014116888B4 (en) * 2014-11-18 2018-05-17 Thermik Gerätebau GmbH Temperature-dependent switch

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2543040A (en) * 1946-09-24 1951-02-27 Charles S Mertler Snap-action thermostatic switch
US2689933A (en) * 1953-06-26 1954-09-21 Westinghouse Electric Corp Thermally protected two-speed motors
US2840666A (en) * 1954-04-13 1958-06-24 Greenhut Joseph Thermal motor protection switch
US2866039A (en) * 1957-04-29 1958-12-23 Metals & Controls Corp Heater-type thermostatic switch
US2891124A (en) * 1957-10-04 1959-06-16 Victor G Vaughan Thermostatic electric circuit-breakers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2202169A (en) * 1986-12-18 1988-09-21 Electrovac Method for joining conductor parts of an electric switch component
GB2202169B (en) * 1986-12-18 1991-12-11 Electrovac Method for joining conductor parts of an electric switch component
JP2014059968A (en) * 2012-09-14 2014-04-03 Ubukata Industries Co Ltd Thermally-actuated switch for sealed motor compressor

Also Published As

Publication number Publication date
DE1197955B (en) 1965-08-05
US3103566A (en) 1963-09-10

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